OCaml 4.13.0~rc1 packages

[Octachron]

This is the first release candidate for OCaml 4.13.0. Compared to the last beta, this version includes two more safe bug fixes in flambda and compiler-libs, a small regression fix when compiling C file with ocaml{c,opt}, and mostly internal configuration and build improvements.

Changes since the beta release

Bug fixes

• #10593: Fix untyping of patterns without named existential quantifiers. This
  bug was only present in the beta version of OCaml 4.13.0.
  (Ulysse Gérard, review by Florian Angeletti)

• #10603, #10611: Fix if condition marked as inconstant in flambda
  (Vincent Laviron and Pierre Chambart, report by Marcello Seri)

Regression fix

• #9960, #10619(new in rc1): extend ocamlc/ocamlopt's -o option to work when
  compiling C files
  (Sébastien Hinderer, reported by Daniel Bünzli, review by
  Florian Angeletti and Gabriel Scherer)

Internal configuration and build system

• #10451: Replace the use of iconv with a C utility to convert $(LIBDIR) to a
  C string constant on Windows when building the runtime. Hardens the generation
  of the constant on Unix for paths with backslashes, double-quotes and
  newlines.
  (David Allsopp, review by Florian Angeletti and Sébastien Hinderer)

• #10471: Fix detection of arm32 architectures with musl in configure.
  (Louis Gesbert, review by David Allsopp)

• #10511: Cygwin ports now correctly configure when flexdll is not available.
  (David Allsopp, review by Florian Angeletti)

• #10584, #10856: Standard Library documentation build no longer fails if
  optional libraries have been disabled.
  (David Allsopp, report by Yuri Victorovich review by Florian Angeletti)

Manual

• #10605: manual, name few css classes to ease styling and maintainability.
  (Florian Angeletti, review by Wiktor Kuchta and Gabriel Scherer)

[kit-ty-kate]

Thanks!